It's almost like the implication is that while dabbling and sexual gymnastics is something Jack does with men, settling down is something he does with women.

Couldn't agree with you more on this point and this is precisely what has been bothering me as well the last few episodes. And to think this comes from RTD who's a gay man, apparently creating a show that is meant to show same sex relationship in a more positive light along with straight relationships. I just feel Torchwoord is just going downhill nowadays and I just hate it. :(